diff --git a/mesecons_lightstone/init.lua b/mesecons_lightstone/init.lua
index 079c6da..dfaa9c4 100644
--- a/mesecons_lightstone/init.lua
+++ b/mesecons_lightstone/init.lua
@@ -2,13 +2,13 @@ function mesecon:lightstone_add(name, base_item, texture_off, texture_on)
     minetest.register_node("mesecons_lightstone:lightstone_" .. name .. "_off", {
 	    tile_images = {texture_off},
 	    inventory_image = minetest.inventorycube(texture_off),
-	    groups = {crackly=2},
+	    groups = {cracky=2},
     	    description=name.." Lightstone",
     })
     minetest.register_node("mesecons_lightstone:lightstone_" .. name .. "_on", {
 	    tile_images = {texture_on},
 	    inventory_image = minetest.inventorycube(texture_on),
-	    groups = {crackly=2},
+	    groups = {cracky=2},
 	    drop = "node mesecons_lightstone:lightstone_" .. name .. "_off 1",
 	    light_source = LIGHT_MAX-2,
     	    description=name.." Lightstone",
diff --git a/mesecons_movestones/init.lua b/mesecons_movestones/init.lua
index 7343c4d..8ab106d 100644
--- a/mesecons_movestones/init.lua
+++ b/mesecons_movestones/init.lua
@@ -44,7 +44,7 @@ minetest.register_node("mesecons_movestones:movestone", {
 	tile_images = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_arrows.png", "jeija_movestone_arrows.png"},
 	paramtype2 = "facedir",
 	legacy_facedir_simple = true,
-	groups = {crackly=3},
+	groups = {cracky=3},
     	description="Movestone",
 })
 
@@ -153,7 +153,7 @@ minetest.register_node("mesecons_movestones:sticky_movestone", {
 	inventory_image = minetest.inventorycube("jeija_sticky_movestone.png", "jeija_movestone_side.png", "jeija_movestone_side.png"),
 	paramtype2 = "facedir",
 	legacy_facedir_simple = true,
-	groups = {crackly=3},
+	groups = {cracky=3},
     	description="Sticky Movestone",
 })